add CP2K easyconfig with ictce/5.5.0 + deps
add missing Doxygen easyconfig
add missing easyconfigs
add missing Doxygen easyconfig file
add missing Bison easyconfig file
Merge branch 'develop' into cp2k_ictce-5.5.0

Conflicts:
	easybuild/easyconfigs/b/Bison/Bison-2.7-ictce-5.3.0.eb
	easybuild/easyconfigs/d/Doxygen/Doxygen-1.8.3.1-ictce-4.1.13.eb
Merge pull request #572 from boegel/cp2k_ictce-5.5.0

add CP2K easyconfig with ictce/5.5.0 + deps